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A power plant is designed to generate 8.0 MW OF WORK 98.0X106 J/s). The plant is powered by steam at 765K with the exhaust at 341K. If this power plant has an efficiency of 49% of the efficiency of an ideal engine operating at the same temperatures, what is the magnitude of the heat that is exhausted by the engine each second?
Give your answer in MW(106 J/s) to three significant figures . it is a positive number (the magnitude).
A 1200kg car (A) traveling due north at 25m/s collides with a 2000kg truck traveling due west at 18m/s. What is the velocity of the wreckage just after the collison
A 0.060 kg tennis ball, moving with a speed of 5.50 m/s, has a head-on collision with a 0.090 kg ball initially moving in the same direction at a speed of 3.00 m/s
A hollow, thin-walled cylinder and a solid sphere start from rest and roll without slipping down an inclined plane of length4.0 m. The cylinder arrives at the bottom of the plane 2.4 s after the sphere. Decide the angle among the inclined plane and t..
The filament of a light bulb has a temperature of 2.90 103 °C and radiates 66 watts of power. Find the surface area of the filament
Calculate the work done on 0.205 mol of methane when it is compressed from 10.0 L to 2.25 L at 25 degree's Celsius, assuming that methane is (a) an ideal gas and (b) a van der Waals gas.
A swing ride at a carnival consists of chairs that are swung in a circle by 12.0 meter cables attached to a vertical rotating pole. Find the tension in cable attached to the chair
a silver dollar of mass 200gm, and diameter 8cm, has a small hole punched through it at 2 cm from the center. the coin is initially at rest in a vertical plain with the hole directly under the center, what is the angular velocity of the coin at its..
A wire has a length of 6.63 Ã- 10-2 m and is used to make a circular coil of one turn. compute the maximum torque that this coil can experience
A 646keV x-ray photon scatters from an electron at rest, deflecting through 108? What is the scattered photon's energy
Two wheels have the same mass and radius of 4.8 kg and 0.54 m, respectively. One has (a) the shape of a hoop and the other (b) the shape of a solid disk. The wheels start from rest and have a constant angular acceleration with respect to a rotational..
A stone with a mass of 0.600kg is attached to one end of a string 0.800m long, Find the maximum speed the stone can attain without breaking the string
Cube of ice is taken from the freezer at -8.5°C and placed in a 75-gram aluminum calorimeter filled with 300.0 grams of water at room temperature of 20.0°C. The final situation is observed to be all water at 17°C. What was the mass of the ice cub..
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